Wings

so i've had Wings for a while, unlocked all the bonus missionss (and i have two cartridges for multiplayer) on both copies. on the bonus dogfight for the last poster in the gallery (i think it happened on both the german and the allied gallery), on the screen where you select the mission, it says the mission type is "strafing," when i load the mission, there's no description on the story tile, and when i press A, i hear the plane engine but there's no picture. this ever happen to anyone? what's doing it?